A heap-buffer-overflow vulnerability exists in the APNG (Animated PNG) file loader of GIMP. This flaw occurs when the `fcTL` width exceeds the `IHDR` width, leading to pixel data being written past the end of a heap allocation. Additionally, a heap-based buffer overflow exists in the DDS plug-in due to a BPP mismatch in the `load_layer()` function. Both vulnerabilities can be triggered by opening a specially crafted image file, potentially leading to code execution.

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1618:09 advisory.

    * gimp: GIMP APNG loader heap-buffer-overflow when fcTL width exceeds IHDR width (file-png.c)     (CVE-2026-42169)
      * gimp: integer overflow in file-fits plugin causes a heap-based buffer overflow on crafted FITS images     (CVE-2026-66758)
      * gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted ICNS     images (CVE-2026-66759)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50817 advisory.

    - fix CVE-2026-42169
    - fix CVE-2026-66758

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:50817 advisory.

    The GIMP (GNU Image Manipulation Program) is an image composition and editing program. GIMP provides a     large image manipulation toolbox, including channel operations and layers, effects, sub-pixel imaging and     anti-aliasing, and conversions, all with multi-level undo.

    Security Fix(es):

    * gimp: GIMP APNG loader heap-buffer-overflow when fcTL width exceeds IHDR width (file-png.c)     (CVE-2026-42169)

    * gimp: integer overflow in file-fits plugin causes a heap-based buffer overflow on crafted FITS images     (CVE-2026-66758)

    * gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted ICNS     images (CVE-2026-66759)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A heap-buffer-overflow vulnerability exists in the APNG (Animated PNG) file loader of GIMP. This flaw     occurs when the `fcTL` width exceeds the `IHDR` width, leading to pixel data being written past the end of     a heap allocation. Additionally, a heap-based buffer overflow exists in the DDS plug-in due to a BPP     mismatch in the `load_layer()` function. Both vulnerabilities can be triggered by opening a specially     crafted image file, potentially leading to code execution. (CVE-2026-42169)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
339028	MiracleLinux 9 : gimp-3.0.4-4.el9_8.9 (AXSA:2026-1618:09)	Nessus	Miracle Linux Local Security Checks	Local	high
332980	Oracle Linux 9 : gimp (ELSA-2026-50817)	Nessus	Oracle Linux Local Security Checks	Local	high
332755	RHEL 9 : gimp (RHSA-2026:50817)	Nessus	Red Hat Local Security Checks	Local	high
331875	Linux Distros Unpatched Vulnerability : CVE-2026-42169	Nessus	Misc.	Local	high

Detections

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CVE-2026-42169

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Tenable Plugins

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